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gptkbp:instance_of
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gptkb:satellite
|
|
gptkbp:constellation
|
24 satellites minimum
|
|
gptkbp:coverage
|
global
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|
gptkbp:developed_by
|
gptkb:Department_of_Defense
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gptkbp:frequency
|
L1, L2, L5
|
|
https://www.w3.org/2000/01/rdf-schema#label
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Global Positioning System (GPS) satellites
|
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gptkbp:is_critical_for
|
gptkb:disaster_response
gptkb:urban_planning
gptkb:military_operations
gptkb:logistics
gptkb:scientific_research
infrastructure management
environmental monitoring
search and rescue operations
emergency preparedness
transportation safety
|
|
gptkbp:is_maintained_by
|
gptkb:United_States_Air_Force
|
|
gptkbp:is_part_of
|
gptkb:GPS_constellation
navigation systems
|
|
gptkbp:is_supported_by
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ground stations
|
|
gptkbp:is_used_in
|
gptkb:civil_aviation
gptkb:smartphone
gptkb:emergency_services
gptkb:drones
agriculture
recreational activities
maritime navigation
surveying
automotive navigation
|
|
gptkbp:is_vulnerable_to
|
jamming
spoofing
|
|
gptkbp:launch_date
|
February 22, 1978
|
|
gptkbp:launched
|
gptkb:NASA
|
|
gptkbp:lifespan
|
about 10-15 years
|
|
gptkbp:number_in_orbit
|
over 30
|
|
gptkbp:operated_by
|
gptkb:United_States_government
|
|
gptkbp:orbital_altitude
|
approximately 20,200 kilometers
|
|
gptkbp:part_of
|
gptkb:Earth_observation
|
|
gptkbp:performance
|
within a few meters
|
|
gptkbp:provides_support_for
|
mapping
timing
geolocation
|
|
gptkbp:receives_signals_from
|
ground control stations
|
|
gptkbp:services_provided
|
gptkb:military
civilian
|
|
gptkbp:transmits_signals
|
time and location data
|
|
gptkbp:upgrades
|
modernization programs
|
|
gptkbp:used_for
|
gptkb:navigation
|
|
gptkbp:uses_atomic_clocks
|
yes
|
|
gptkbp:bfsParent
|
gptkb:Titan_IVB
|
|
gptkbp:bfsLayer
|
5
|